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Designing a Wine Cellar? Let’s get it right.

Start with a free expert consult—cooling system sizing, racking options, and zero pressure.

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Wine Cellar Authority · Sizing tool

Wine Guardian Cooling Calculator

Enter a few details about your wine cellar and this tool estimates the cooling load in BTU/hr, then narrows the Wine Guardian models built for that range. Same calculation the manufacturer uses, with direct links to each unit on Wine Cellar Authority to buy or request a quote.

Confirm before you buy. This guidance is general and intended to help narrow the selection. Final sizing, installation design, electrical requirements, and configuration should be confirmed with Wine Guardian’s official documentation and a licensed HVAC professional or qualified contractor.
Units
1

Cellar Construction

Cellar Size 100 ft²9.3 m²
Small Large ft² m²
Room Height
ft m
Glass Area 0 ft²0 m²
None Large ft² m²
Glass Type
In addition to a reduction in efficiency, uninsulated glass may lead to excess condensation.
System Type
Duct Length 25 ft7.6 m
None 50 ft15 m ft m
Setting the duct length to 0 will only show ductless units.
Hottest Wall/Ceiling Temp 75° F24° C
32° F0° C 120° F48° C °F °C
Area of Hottest Wall/Ceiling
ft² m²
Examples: roof, exterior walls, boiler room.
Inlet Condenser Air Temp 80° F27° C
50° F10° C 125° F52° C °F °C
Each unit's capacity is adjusted by 1% per °F of condenser air temperature away from 80°F, exactly as the manufacturer's calculator does.
2

Cellar Insulation

Ceiling Insulation Depth 9 in229 mm
0 30 in762 mm in mm
Wall Insulation Depth 4 in101.6 mm
0 30 in762 mm in mm
Floor Insulation Depth 4 in101.6 mm
0 30 in762 mm in mm
R-value = depth × R per inch of the material (Rolled Fiberglass 3.25, Expanded Polystyrene 5, Open Cell Spray Foam 3.5, Closed Cell Spray Foam 7), rounded to a whole number.
Ceiling Insulation
R RSI
Wall Insulation
R RSI
Floor Insulation
R RSI
Is there open space beneath the floor?
3

Cellar Use

Internal Cellar Temperature 55° F12.7° C
45° F7° C 65° F18° C °F °C
Typical Use Conditions
Entrances per day also count the exit. Intermittent lighting runs only while the cellar is in use; continuous lighting stays on (display, exit lighting).

Recommended Systems

Configure your cellar, then calculate to see matching Wine Guardian units.
Cooling Load
00BTU/hrkW/hr
Volume
00ft³m³
Showing 0 results

Sizing a wine cellar cooling unit

An undersized unit runs constantly, struggles to hold a steady temperature, and can over-dry the air, drying corks and disturbing the aging process. An oversized unit cools too fast and short-cycles, so the room never dehumidifies properly; when humidity climbs too high, labels peel and mold can grow.

This calculator follows the manufacturer's own cooling calculator step for step: the same load formula, the same model capacity and volume ranges, and the same capacity adjustment of 1% per °F of condenser air temperature above 80°F (and 1% per °F more below 80°F). Use it to narrow the shortlist, not to finalize a spec.